Lieutenant Colonel Eric Stewart Marshall (29 May, 1879 - 26 February, 1963) was a British Antarctic explorer with the Nimrod Expedition led by Ernest Shackleton in 1907–09, and was one of the party of four men (Marshall, Shackleton, Jameson Adams and Frank Wild) who reached Furthest South at 88°23'S 162°00'E on 9 January 1909.